PVC Tunnel Anti-Seepage Waterproof Sheet

Product Overview: PVC Tunnel Anti-Seepage Waterproof Sheet The PVC Tunnel Anti-Seepage Waterproof Sheet is a rigid-flexible polymer anti-leakage membrane for underground tunnel infrastructure. It can be combined with Bentonite GCL, Drainage Board and Erosion Control Mat to construct integrated waterproof, drainage and slope protection geotechnical systems. Core Advantages This PVC sheet delivers outstanding impermeability to block underground water infiltration and resist underground corrosive chemicals. It maintains stable mechanical performance under low temperature and has strong puncture resistance. When laid above Drainage Board, the two materials coordinate to drain accumulated seepage and reduce hydrostatic pressure on the membrane. Paired with Bentonite GCL, it forms double-layer anti-seepage barriers to strengthen overall leakproof performance. Covering tunnel entrance slopes with Erosion Control Mat protects the PVC sheet from sharp rock scratches and long-term rainwa…